0 and bandwidth ω0/Q of the circuit are separately and electronically adjustable. Simulation results are performed with LTspice Simulator using 0.18 μm TSMC CMOS process parameters. Based on this study, simulation and theoretical results are in harmony for the proposed circuits.

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Current Mode Filters Employing Current Differencing Transconductance Amplifiers

Mustafa Konal *, Firat Kacar **, Cengiz Polat Uzunoglu ***
* Department of Electronics and Telecommunication Engineering, Namik Kemal University, Tekirdag, Turkey.
** Department of Electrical and Electronics Engineering, Istanbul University-Cerrahpasa, Istanbul, Turkey.
*** Department of Electrical and Electronics Engineering, Istanbul University-Cerrahpasa, Istanbul, Turkey.
Periodicity:July - December'2020
DOI : https://doi.org/10.26634/jcir.8.2.17789

Abstract

In this paper, band-pass/low-pass bi-quad filter realizations are proposed. The designed current-mode filters contain single input and two outputs based on two current differencing transconductance amplifiers (CDTAs) and only two grounded capacitors without any resistors can synchronically operate. The low-pass (LP) and the band-pass (BP) filter responses of the proposed realization are investigated. The pole angular frequency ω0 and bandwidth ω0/Q of the circuit are separately and electronically adjustable. Simulation results are performed with LTspice Simulator using 0.18 μm TSMC CMOS process parameters. Based on this study, simulation and theoretical results are in harmony for the proposed circuits.

Keywords

 CDTA, Analog Integrated Circuits, Bi-Quad Filter, Angular Frequency.

How to Cite this Article?

 Konal, M., Kacar, F., and Uzunoglu, C. P. (2020). Current Mode Filters Employing Current Differencing Transconductance Amplifiers. i-manager's Journal on Circuits and Systems, 8(2), 10-15. https://doi.org/10.26634/jcir.8.2.17789

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